*miscHEADmaster

4 files changed, 415 insertions, 0 deletions

diff --git a/Source/modules/asura-base/Misc/GUID.cpp b/Source/modules/asura-base/Misc/GUID.cpp
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Source/modules/asura-base/Misc/GUID.cpp
diff --git a/Source/modules/asura-base/Misc/GUID.h b/Source/modules/asura-base/Misc/GUID.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Source/modules/asura-base/Misc/GUID.h
diff --git a/Source/modules/asura-base/Misc/UTF8.cpp b/Source/modules/asura-base/Misc/UTF8.cpp
new file mode 100644
index 0000000..8cfb3ab
--- /dev/null
+++ b/Source/modules/asura-base/Misc/UTF8.cpp
@@ -0,0 +1,395 @@
+#include "UTF8.h"
+
+namespace_begin(AsuraEngine)
+
+typedef unsigned long	UTF32;	/* at least 32 bits */
+typedef unsigned short	UTF16;	/* at least 16 bits */
+typedef unsigned char	UTF8;	/* typically 8 bits */
+typedef unsigned char	Boolean; /* 0 or 1 */
+
+typedef enum {
+	strictConversion = 0,
+	lenientConversion
+} ConversionFlags;
+
+typedef enum {
+	conversionOK, 		/* conversion successful */
+	sourceExhausted,	/* partial character in source, but hit end */
+	targetExhausted,	/* insuff. room in target for conversion */
+	sourceIllegal		/* source sequence is illegal/malformed */
+} ConversionResult;
+
+/* Some fundamental constants */
+#define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD
+#define UNI_MAX_BMP (UTF32)0x0000FFFF
+#define UNI_MAX_UTF16 (UTF32)0x0010FFFF
+#define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF
+#define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF
+
+ConversionResult ConvertUTF8toUTF16(
+	const UTF8** sourceStart, const UTF8* sourceEnd,
+	UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags);
+
+
+/*
+* Copyright 2001-2004 Unicode, Inc.
+*
+* Disclaimer
+*
+* This source code is provided as is by Unicode, Inc. No claims are
+* made as to fitness for any particular purpose. No warranties of any
+* kind are expressed or implied. The recipient agrees to determine
+* applicability of information provided. If this file has been
+* purchased on magnetic or optical media from Unicode, Inc., the
+* sole remedy for any claim will be exchange of defective media
+* within 90 days of receipt.
+*
+* Limitations on Rights to Redistribute This Code
+*
+* Unicode, Inc. hereby grants the right to freely use the information
+* supplied in this file in the creation of products supporting the
+* Unicode Standard, and to make copies of this file in any form
+* for internal or external distribution as long as this notice
+* remains attached.
+*/
+
+/* ---------------------------------------------------------------------
+
+Conversions between UTF32, UTF-16, and UTF-8. Source code file.
+Author: Mark E. Davis, 1994.
+Rev History: Rick McGowan, fixes & updates May 2001.
+Sept 2001: fixed const & error conditions per
+mods suggested by S. Parent & A. Lillich.
+June 2002: Tim Dodd added detection and handling of incomplete
+source sequences, enhanced error detection, added casts
+to eliminate compiler warnings.
+July 2003: slight mods to back out aggressive FFFE detection.
+Jan 2004: updated switches in from-UTF8 conversions.
+Oct 2004: updated to use UNI_MAX_LEGAL_UTF32 in UTF-32 conversions.
+
+See the header file "ConvertUTF.h" for complete documentation.
+
+------------------------------------------------------------------------ */
+
+
+#include "UTF8.h"
+#ifdef CVTUTF_DEBUG
+#include <stdio.h>
+#endif
+
+static const int halfShift = 10; /* used for shifting by 10 bits */
+
+static const UTF32 halfBase = 0x0010000UL;
+static const UTF32 halfMask = 0x3FFUL;
+
+#define UNI_SUR_HIGH_START  (UTF32)0xD800
+#define UNI_SUR_HIGH_END    (UTF32)0xDBFF
+#define UNI_SUR_LOW_START   (UTF32)0xDC00
+#define UNI_SUR_LOW_END     (UTF32)0xDFFF
+
+
+/* --------------------------------------------------------------------- */
+
+/*
+* Index into the table below with the first byte of a UTF-8 sequence to
+* get the number of trailing bytes that are supposed to follow it.
+* Note that *legal* UTF-8 values can't have 4 or 5-bytes. The table is
+* left as-is for anyone who may want to do such conversion, which was
+* allowed in earlier algorithms.
+*/
+static const char trailingBytesForUTF8[256] = {
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+	1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+	2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5
+};
+
+/*
+* Magic values subtracted from a buffer value during UTF8 conversion.
+* This table contains as many values as there might be trailing bytes
+* in a UTF-8 sequence.
+*/
+static const UTF32 offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL,
+0x03C82080UL, 0xFA082080UL, 0x82082080UL };
+
+/*
+* Once the bits are split out into bytes of UTF-8, this is a mask OR-ed
+* into the first byte, depending on how many bytes follow.  There are
+* as many entries in this table as there are UTF-8 sequence types.
+* (I.e., one byte sequence, two byte... etc.). Remember that sequencs
+* for *legal* UTF-8 will be 4 or fewer bytes total.
+*/
+static const UTF8 firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
+
+
+/* --------------------------------------------------------------------- */
+
+/*
+* Utility routine to tell whether a sequence of bytes is legal UTF-8.
+* This must be called with the length pre-determined by the first byte.
+* If not calling this from ConvertUTF8to*, then the length can be set by:
+*  length = trailingBytesForUTF8[*source]+1;
+* and the sequence is illegal right away if there aren't that many bytes
+* available.
+* If presented with a length > 4, this returns false.  The Unicode
+* definition of UTF-8 goes up to 4-byte sequences.
+*/
+
+static Boolean isLegalUTF8(const UTF8 *source, int length) {
+	UTF8 a;
+	const UTF8 *srcptr = source + length;
+	switch (length) {
+	default: return false;
+		/* Everything else falls through when "true"... */
+	case 4: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;
+	case 3: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;
+	case 2: if ((a = (*--srcptr)) > 0xBF) return false;
+
+		switch (*source) {
+			/* no fall-through in this inner switch */
+		case 0xE0: if (a < 0xA0) return false; break;
+		case 0xED: if (a > 0x9F) return false; break;
+		case 0xF0: if (a < 0x90) return false; break;
+		case 0xF4: if (a > 0x8F) return false; break;
+		default:   if (a < 0x80) return false;
+		}
+
+	case 1: if (*source >= 0x80 && *source < 0xC2) return false;
+	}
+	if (*source > 0xF4) return false;
+	return true;
+}
+
+
+/* --------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF8toUTF16(
+	const UTF8** sourceStart, const UTF8* sourceEnd,
+	UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags) {
+	ConversionResult result = conversionOK;
+	const UTF8* source = *sourceStart;
+	UTF16* target = *targetStart;
+	while (source < sourceEnd) {
+		UTF32 ch = 0;
+		unsigned short extraBytesToRead = trailingBytesForUTF8[*source];
+		if (source + extraBytesToRead >= sourceEnd) {
+			result = sourceExhausted; break;
+		}
+		/* Do this check whether lenient or strict */
+		if (!isLegalUTF8(source, extraBytesToRead + 1)) {
+			result = sourceIllegal;
+			break;
+		}
+		/*
+		* The cases all fall through. See "Note A" below.
+		*/
+		switch (extraBytesToRead) {
+		case 5: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */
+		case 4: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */
+		case 3: ch += *source++; ch <<= 6;
+		case 2: ch += *source++; ch <<= 6;
+		case 1: ch += *source++; ch <<= 6;
+		case 0: ch += *source++;
+		}
+		ch -= offsetsFromUTF8[extraBytesToRead];
+
+		//DebugAssertIf(target >= targetEnd);
+
+		if (ch <= UNI_MAX_BMP) { /* Target is a character <= 0xFFFF */
+														 /* UTF-16 surrogate values are illegal in UTF-32 */
+			if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {
+				if (flags == strictConversion) {
+					source -= (extraBytesToRead + 1); /* return to the illegal value itself */
+					result = sourceIllegal;
+					break;
+				}
+				else {
+					*target++ = UNI_REPLACEMENT_CHAR;
+				}
+			}
+			else {
+				*target++ = (UTF16)ch; /* normal case */
+			}
+		}
+		else if (ch > UNI_MAX_UTF16) {
+			if (flags == strictConversion) {
+				result = sourceIllegal;
+				source -= (extraBytesToRead + 1); /* return to the start */
+				break; /* Bail out; shouldn't continue */
+			}
+			else {
+				*target++ = UNI_REPLACEMENT_CHAR;
+			}
+		}
+		else {
+			/* target is a character in range 0xFFFF - 0x10FFFF. */
+			if (target + 1 >= targetEnd) {
+				source -= (extraBytesToRead + 1); /* Back up source pointer! */
+				result = targetExhausted; break;
+			}
+			ch -= halfBase;
+			*target++ = (UTF16)((ch >> halfShift) + UNI_SUR_HIGH_START);
+			*target++ = (UTF16)((ch & halfMask) + UNI_SUR_LOW_START);
+		}
+	}
+	*sourceStart = source;
+	*targetStart = target;
+	return result;
+}
+
+/* ---------------------------------------------------------------------
+
+Note A.
+The fall-through switches in UTF-8 reading code save a
+temp variable, some decrements & conditionals.  The switches
+are equivalent to the following loop:
+{
+int tmpBytesToRead = extraBytesToRead+1;
+do {
+ch += *source++;
+--tmpBytesToRead;
+if (tmpBytesToRead) ch <<= 6;
+} while (tmpBytesToRead > 0);
+}
+In UTF-8 writing code, the switches on "bytesToWrite" are
+similarly unrolled loops.
+
+--------------------------------------------------------------------- */
+
+ConversionResult ConvertUTF16toUTF8(
+	const UTF16** sourceStart, const UTF16* sourceEnd,
+	UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags) {
+	ConversionResult result = conversionOK;
+	const UTF16* source = *sourceStart;
+	UTF8* target = *targetStart;
+	while (source < sourceEnd) {
+		UTF32 ch;
+		unsigned short bytesToWrite = 0;
+		const UTF32 byteMask = 0xBF;
+		const UTF32 byteMark = 0x80;
+		const UTF16* oldSource = source; /* In case we have to back up because of target overflow. */
+		ch = *source++;
+		/* If we have a surrogate pair, convert to UTF32 first. */
+		if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END && source < sourceEnd) {
+			UTF32 ch2 = *source;
+			if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END) {
+				ch = ((ch - UNI_SUR_HIGH_START) << halfShift)
+					+ (ch2 - UNI_SUR_LOW_START) + halfBase;
+				++source;
+			}
+			else if (flags == strictConversion) { /* it's an unpaired high surrogate */
+				--source; /* return to the illegal value itself */
+				result = sourceIllegal;
+				break;
+			}
+		}
+		else if ((flags == strictConversion) && (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END)) {
+			--source; /* return to the illegal value itself */
+			result = sourceIllegal;
+			break;
+		}
+		/* Figure out how many bytes the result will require */
+		if (ch < (UTF32)0x80) {
+			bytesToWrite = 1;
+		}
+		else if (ch < (UTF32)0x800) {
+			bytesToWrite = 2;
+		}
+		else if (ch < (UTF32)0x10000) {
+			bytesToWrite = 3;
+		}
+		else if (ch < (UTF32)0x200000) {
+			bytesToWrite = 4;
+		}
+		else {
+			bytesToWrite = 2;
+			ch = UNI_REPLACEMENT_CHAR;
+		}
+
+		target += bytesToWrite;
+		if (target > targetEnd) {
+			source = oldSource; /* Back up source pointer! */
+			target -= bytesToWrite; result = targetExhausted; break;
+		}
+		switch (bytesToWrite) {	/* note: everything falls through. */
+		case 4:	*--target = (ch | byteMark) & byteMask; ch >>= 6;
+		case 3:	*--target = (ch | byteMark) & byteMask; ch >>= 6;
+		case 2:	*--target = (ch | byteMark) & byteMask; ch >>= 6;
+		case 1:	*--target = ch | firstByteMark[bytesToWrite];
+		}
+		target += bytesToWrite;
+	}
+	*sourceStart = source;
+	*targetStart = target;
+	return result;
+}
+
+
+bool ConvertUTF8toUTF16(const char* source, int srcLength, uint16* output, int& outlength)
+{
+	uint16* newoutput = output;
+	const UTF8* src = (UTF8*)source;
+	if (ConvertUTF8toUTF16(&src, src + srcLength, &newoutput, newoutput + srcLength, lenientConversion) != sourceIllegal)
+	{
+		outlength = newoutput - output;
+		return true;
+	}
+	else
+	{
+		outlength = 0;
+		return false;
+	}
+}
+
+bool ConvertUTF8toUTF16(const std::string& source, dynamic_array<uint16>& utf16)
+{
+	utf16.resize_uninitialized(source.size());
+	int length = 0;
+	bool success = ConvertUTF8toUTF16(source.data(), (int)source.size(), utf16.begin(), length);
+	utf16.resize_uninitialized(length);
+	return success;
+}
+
+bool ConvertUTF16toUTF8(const uint16* source, int srcLength, char* output, int& outlength)
+{
+	UTF8* newoutput = (UTF8*)output;
+	const UTF16* src = (UTF16*)source;
+	if (ConvertUTF16toUTF8(&src, src + srcLength, &newoutput, newoutput + (srcLength * 4), lenientConversion) != sourceIllegal)
+	{
+		outlength = newoutput - (UTF8*)output;
+		return true;
+	}
+	else
+	{
+		outlength = 0;
+		return false;
+	}
+}
+
+
+bool ConvertUTF16toUTF8(const dynamic_array<UnicodeChar>& source, std::string& utf8)
+{
+	utf8.resize(source.size() * 4);
+	int length = 0;
+	bool success = ConvertUTF16toUTF8(source.data(), (int)source.size(), &utf8[0], length);
+	utf8.resize(length);
+	return success;
+}
+
+bool ConvertUTF16toUTF8(const uint16 utf16character, std::string& utf8)
+{
+	int len;
+	char character[5];
+	if (!ConvertUTF16toUTF8(&utf16character, 1, character, len))
+		return false;
+	character[len] = 0;
+	utf8 = std::string(character);
+	return true;
+}
+
+
+namespace_end
\ No newline at end of file
diff --git a/Source/modules/asura-base/Misc/UTF8.h b/Source/modules/asura-base/Misc/UTF8.h
new file mode 100644
index 0000000..269ad36
--- /dev/null
+++ b/Source/modules/asura-base/Misc/UTF8.h
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <string>
+
+#include "../Type.h"
+#include "../Classes.h"
+#include "../Utilities/dynamic_array.h"
+
+namespace_begin(AsuraEngine)
+
+typedef uint16 UnicodeChar;
+
+bool ConvertUTF8toUTF16(const char* source, int srcLength, UnicodeChar* output, int& outlength);
+bool ConvertUTF8toUTF16(const std::string& source, dynamic_array<UnicodeChar>& utf16);
+bool ConvertUTF16toUTF8(const uint16* source, int srcLength, char* output, int& outlength);
+bool ConvertUTF16toUTF8(const dynamic_array<UnicodeChar>& source, std::string& utf8);
+bool ConvertUTF16toUTF8(const uint16* source, int srcLength, char* output, int& outlength);
+bool ConvertUTF16toUTF8(const uint16 utf16character, std::string& utf8);
+
+namespace_end
\ No newline at end of file